Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼
ALLDATASHEET.ES

X  

AD8206YCSURF Datasheet(PDF) 11 Page - Analog Devices

No. de pieza AD8206YCSURF
Descripción Electrónicos  Single-Supply, 42 V System Difference Amplifier
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  AD [Analog Devices]
Página de inicio  http://www.analog.com
Logo AD - Analog Devices

AD8206YCSURF Datasheet(HTML) 11 Page - Analog Devices

Back Button AD8206YCSURF Datasheet HTML 4Page - Analog Devices AD8206YCSURF Datasheet HTML 5Page - Analog Devices AD8206YCSURF Datasheet HTML 6Page - Analog Devices AD8206YCSURF Datasheet HTML 7Page - Analog Devices AD8206YCSURF Datasheet HTML 8Page - Analog Devices AD8206YCSURF Datasheet HTML 9Page - Analog Devices AD8206YCSURF Datasheet HTML 10Page - Analog Devices AD8206YCSURF Datasheet HTML 11Page - Analog Devices AD8206YCSURF Datasheet HTML 12Page - Analog Devices  
Zoom Inzoom in Zoom Outzoom out
 11 / 12 page
background image
AD8206
Rev. 0 | Page 11 of 12
APPLICATIONS
A typical application for the AD8206 is high-side measurement
of a current through a solenoid for PWM control of the solenoid
opening. Typical applications include hydraulic transmission
control and diesel injection control.
Two typical circuit configurations are used for this type of
application.
HIGH-SIDE CURRENT SENSE WITH A LOW-SIDE
SWITCH
In this case, the PWM control switch is ground referenced. An
inductive load (solenoid) is tied to a power supply. A resistive
shunt is placed between the switch and the load (see Figure 22).
An advantage of placing the shunt on the high side is that the
entire current, including the recirculation current, can be
measured since the shunt remains in the loop when the switch
is off. In addition, diagnostics can be enhanced because shorts
to ground can be detected with the shunt on the high side.
In this circuit configuration, when the switch is closed, the
common-mode voltage moves down to near the negative rail.
When the switch is opened, the voltage reversal across the
inductive load causes the common-mode voltage to be held
one diode drop above the battery by the clamp diode.
+IN VREF1 +VS OUT
–IN
GND VREF2 NC
INDUCTIVE
LOAD
AD8206
CLAMP
DIODE
42V
BATTERY
SHUNT
SWITCH
NC = NO CONNECT
5V
Figure 22. Low-Side Switch
HIGH-SIDE CURRENT SENSE WITH A HIGH-SIDE
SWITCH
This configuration minimizes the possibility of unexpected
solenoid activation and excessive corrosion (see Figure 23). In
this case, both the switch and the shunt are on the high side.
When the switch is off, this removes the battery from the load,
which prevents damage from potential shorts to ground, while
still allowing the recirculating current to be measured and
providing for diagnostics. Removing the power supply from the
load for the majority of the time minimizes the corrosive effects
that could be caused by the differential voltage between the load
and ground.
When using a high-side switch, the battery voltage is connected
to the load when the switch is closed, causing the common-
mode voltage to increase to the battery voltage. In this case,
when the switch is opened, the voltage reversal across the
inductive load causes the common-mode voltage to be held
one diode drop below ground by the clamp diode.
+IN VREF1 +VS OUT
–IN
GND VREF2 NC
INDUCTIVE
LOAD
AD8206
CLAMP
DIODE
42V
BATTERY
SHUNT
SWITCH
NC = NO CONNECT
5V
Figure 23. High-Side Switch
Another typical application for the AD8206 is as part of
the control loop in H-bridge motor control. In this case, the
AD8206 is placed in the middle of the H-bridge (see Figure 24)
so that it can accurately measure current in both directions by
using the shunt available at the motor. This is a better solution
than a ground referenced op amp because ground is not typi-
cally a stable reference voltage in this type of application. This
instability in the ground reference causes the measurements
that could be made with a simple ground referenced op amp to
be inaccurate.
The AD8206 measures current in both directions as the
H-bridge switches and the motor changes direction. The
output of the AD8206 is configured in an external reference
bidirectional mode, see the Output Offset Adjustment section.
+IN VREF1 +VS OUT
–IN
GND VREF2 NC
AD8206
SHUNT
5V
2.5V
5V
CONTROLLER
NC = NO CONNECT
MOTOR
Figure 24. Motor Control Application


Número de pieza similar - AD8206YCSURF

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Analog Devices
AD8206YCSURF AD-AD8206YCSURF Datasheet
262Kb / 12P
   Single-Supply 42 V System Difference Amplifier
Rev. PrA
More results

Descripción similar - AD8206YCSURF

Fabricante ElectrónicoNo. de piezaDatasheetDescripción Electrónicos
logo
Analog Devices
AD8205 AD-AD8205 Datasheet
308Kb / 12P
   Single-Supply 42 V System Difference Amplifier
REV. 0
AD8205YRZ AD-AD8205YRZ Datasheet
457Kb / 12P
   Single-Supply 42 V System Difference Amplifier
REV. D
AD8205YRZ AD-AD8205YRZ Datasheet
457Kb / 12P
   Single-Supply 42 V System Difference Amplifier
REV. D
AD8206 AD-AD8206 Datasheet
262Kb / 12P
   Single-Supply 42 V System Difference Amplifier
Rev. PrA
logo
Burr-Brown (TI)
INA152 BURR-BROWN-INA152 Datasheet
243Kb / 15P
   Single-Supply DIFFERENCE AMPLIFIER
logo
Texas Instruments
INA152 TI1-INA152 Datasheet
792Kb / 18P
[Old version datasheet]   Single-Supply DIFFERENCE AMPLIFIER
INA132U TI1-INA132U Datasheet
320Kb / 13P
[Old version datasheet]   Low Power, Single-Supply DIFFERENCE AMPLIFIER
INA132U2K5E4 TI1-INA132U2K5E4 Datasheet
339Kb / 13P
[Old version datasheet]   Low Power, Single-Supply DIFFERENCE AMPLIFIER
logo
Linear Technology
LT6552 LINER-LT6552_15 Datasheet
360Kb / 16P
   3.3V Single Supply Video Difference Amplifier
LT6552 LINER-LT6552 Datasheet
350Kb / 16P
   3.3V Single Supply Video Difference Amplifier
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com